CN1577013A - Liquid crystal display device and method for driving the same - Google Patents
Liquid crystal display device and method for driving the same Download PDFInfo
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- CN1577013A CN1577013A CNA2004100498687A CN200410049868A CN1577013A CN 1577013 A CN1577013 A CN 1577013A CN A2004100498687 A CNA2004100498687 A CN A2004100498687A CN 200410049868 A CN200410049868 A CN 200410049868A CN 1577013 A CN1577013 A CN 1577013A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
- G02F1/134363—Electrodes characterised by their geometrical arrangement for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0421—Structural details of the set of electrodes
- G09G2300/0434—Flat panel display in which a field is applied parallel to the display plane
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3614—Control of polarity reversal in general
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- Physics & Mathematics (AREA)
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- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Optics & Photonics (AREA)
- Geometry (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
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- Liquid Crystal Display Device Control (AREA)
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Abstract
A liquid crystal display device includes a plurality of pixel regions arranged on a first substrate, a plurality of first electrodes and a plurality of second electrodes individually provided at the pixel regions to form a horizontal electric field, a plurality of gate lines arranged on the first substrate along a horizontal direction to supply scan signals to the pixel regions, a plurality of data lines arranged on the first substrate along a longitudinal direction to supply image information to the pixel regions, a plurality of switching devices each provided at each of the pixel regions and having a first terminal connected to one of the gate lines, a second terminal connected to one of the data lines, and a third terminal connected to a first electrode of the pixel region, a plurality of first common voltage lines supplying a first common voltage to the second electrodes provided at the pixel regions of every odd-numbered first common voltage line, and a plurality of second common voltage lines supplying a second common voltage to second electrodes provided at the pixel regions of every even-numbered second common voltage line, wherein the first terminal of each of the switching devices provided at the pixel regions of a line unit is alternately connected to a N<th >gate line and a N+1<th >gate line (where N is an integer).
Description
The present invention requires the right of priority of on June 27th, 2003 at No. 42830/2003 korean patent application of Korean application, and this application is the form combination in addition to quote in this application.
Technical field
The present invention relates to the method for a kind of liquid crystal display (LCD) device and driving LCD device, or rather, the present invention relates to the method for coplane switch (IPS) LCD device and driving IPS LCD device.
Background technology
Usually,, two substrates is faced with each other and leave certain box gap, and filling liquid crystal material is made liquid crystal display (LCD) device in the box gap by thin film transistor (TFT) (TFT) array base palte and color filter (CF) substrate are adhered to together.On the TFT substrate, form many along continuous straight runs with cells arranged at regular intervals gate line and many longitudinally with the cells arranged at regular intervals data line, described gate line and data line intersect mutually, thereby the formation pixel region has switchgear and pixel capacitors on the point of crossing of every gate line and data line in each pixel region.In addition, on the CF substrate, form red, green and blue look color filter, in the matrix structure around the outer peripheral edges of color filter, be formed for preventing that colored stray light from passing the black matrix" bar of pixel region corresponding to pixel region.In addition, the pixel capacitors of formation in pixel region provides the shared electrode of electric field to liquid crystal material.
In the LCD device, usually use twisted-nematic (TN) liquid crystal display material, and drive described twisted nematic liquid crystal material by the vertical electric field that between pixel capacitors and shared electrode, forms.So the light transmission of TN liquid crystal material will change with observer's visual angle.Therefore, using the TN liquid crystal material is restricted when being used for the large-scale LCD device.For example and since the light transmission along continuous straight runs be symmetry and vertically be asymmetric, therefore so image vertically is opposite, observer's visual angle is narrowed down.In order to solve such problem, a kind of IPS liquid crystal indicator that drives liquid crystal material by horizontal component of electric field has been proposed.
Compare with the LCD device that drives liquid crystal material with vertical electric field, IPS LCD device can improve the angular region characteristic, for example contrast, gray scale inversion, gamut etc., thus obtain wide angular field of view.So, in the large-scale LCD device, usually use IPS LCD.
Figure 1A is the schematic plan view of tft array substrate in the IPS LCD device of expression prior art.In Figure 1A, along continuous straight runs is arranged many gate lines that are parallel to each other (G1-Gn) and is longitudinally arranged many data lines that are parallel to each other (D1-Dm).Therefore, gate line (G1-Gn) and data line (D1-Dm) are crossed as the right angle, and each intersection point constitutes pixel region P1.In order to control the image information of supplying with pixel capacitors 11, in each pixel region P1, be provided with such as switchgears such as TFT TFT1.
Although not shown, grid and the gate line (G1-Gn) of each TFT TFT1 linked to each other, source electrode is linked to each other with data line (D1-Dm), link to each other with pixel capacitors 11 among the pixel region P1 and will drain.So when successively the sweep signal of LCD device being applied to gate line (G1-Gn) and going up, TFT TFT1 just connects (ON) successively by gate line (G1-Gn).Thus, between by the source electrode of each TFT TFT1 of gate line (G1-Gn) conducting (ON) and drain electrode, form conductive channel, and conductive channel offers drain electrode by the image information that data line (D1-Dm) will be applied on the TFT TFT1 source electrode.Because drain electrode links to each other with pixel capacitors 11, so image information is offered pixel capacitors 11.In pixel region P1, form the figure of at least one pixel capacitors 11 along the direction that is parallel to data line (D1-Dm).
In pixel region P1, corresponding with pixel capacitors 11 and be parallel to the common electrode 13 that pixel capacitors 11 forms and produce horizontal component of electric field with pixel capacitors 11, thereby with coplane method of switching driving liquid crystal material.Similarly, the same with pixel capacitors 11, in pixel region P1, form the figure of a common electrode 13 at least.
The common electrode 13 that forms in pixel region P1 by common voltage line (Vcom1-Vcomn) applies common voltage, and described common voltage line (Vcom1-Vcomn) is arranged to be parallel to gate line (G1-Gn).In addition, a side of every common voltage line and a side of every gate line electrically connect, thereby provide identical common voltage to each pixel capacitors 11.
Because pixel capacitors 11 electrically connects with the memory capacitance (not shown), during for the TFT TFT1 conducting (ON) that sweep signal is arranged, charge in the memory capacitance so offer the image information of pixel capacitors 11.Therefore, during not having to disconnect (OFF), offer pixel capacitors 11 by the image information that will charge into and to keep driving liquid crystal material for the TFT TFT1 that sweep signal is arranged.
Figure 1B is the schematic plan view of pixel equivalent electrical circuit in the tft array substrate shown in Figure 1A in the expression prior art.In Figure 1B, pixel region P1 comprises TFT TFT1, and it has grid that links to each other with gate line (G1-Gn) and the source electrode that links to each other with data line (D1-Dm).In addition, owing to the electric capacity of liquid crystal material forms stray capacitance C1c and forms memory capacitance Cst, this stray capacitance C1c and memory capacitance Cst are connected in parallel between the drain electrode and common voltage line (Vcom1-Vcomn) of TFT TFT1.
When liquid crystal material applies electric field, the characteristic of liquid crystal material can degenerate, thereby produces the afterimage that causes because of the dc voltage component.Therefore, for the characteristic that prevents liquid crystal material degenerates and eliminates the dc voltage component, need on the basis of common voltage, apply repeatedly just (+) voltage and negative (-) voltage of image information.Usually this driving method is called the reverse drive method.
In dissimilar reverse drive methods, comprise the frame reverse drive method that makes the image information pole reversal by auspicious unit, make the line reverse drive method of carrying after the image information pole reversal by the gate line unit, with carry after the pole reversal that makes image information by pixel adjacent one another are, and make the some reverse drive method of carrying after the described pole reversal by the picture frame unit.Some reverse drive method in the above-mentioned reverse drive method can more effectively suppress such as flicker than other reverse drive methods or crosstalk and wait pattern distortion, so can produce high quality graphic.
Fig. 2 is the voltage waveform view according to described some inverse approach of prior art.In Fig. 2, common voltage (Vcom) remains dc voltage, and in each frame sweep signal is applied on the gate line successively.On the basis of common voltage by pixel adjacent one another are image information (V with positive polarity and negative polarity
DATA) carry after oppositely, and after making the pole reversal by frame unit on the basis of common voltage, carry.
Applying high potential sweep signal (V
G1-V
G3) conducting (ON) phase ask, be applied to the image information (V on the pixel capacitors
DATA) charging and have pixel voltage (Vp) waveform on memory capacitance.In addition, as sweep signal (V
G1-V
G3) when being transformed into low potential, because with grid on the thin film transistor (TFT) and the overlapping stray capacitance that has been coupled of drain electrode, so pixel voltage (Vp) will descend.Usually the amount that pixel voltage (Vp) is descended is called the fluctuation range (Δ Vp) of pixel capacitors.
Applying low potential sweep signal (V
G1-V
G3) TFT disconnect during (OFF), charge into the pixel voltage (Vp) in the memory capacitance thus be applied to the driving that keeps liquid crystal material on the pixel capacitors continuously.
Usually will be by from image information (V
DATA) in deduct the voltage difference (V that common voltage (Vcom) obtains
DATA-Vcom) be defined as liquid crystal drive voltage (Vcel).Therefore, in order to drive liquid crystal material with liquid crystal drive voltage (Vcel), should be to image information (V
DATA) voltage level that is higher than common voltage (Vcom) is provided.Yet this can cause energy consumption to increase.
In addition, because common voltage (Vcom) is fixed on the particular level, so the amplitude of liquid crystal drive voltage (Vcel) depends on image information.In order in liquid crystal material, to form big electric field, should use source integrated circuit with high output voltage.
In addition, in IPS LCD, if for obtaining high aperture than the interval that increases between pixel capacitors and the common electrode, so, obtain required brightness will need higher driving voltage, therefore will increase energy consumption greatly.
Summary of the invention
Therefore, the invention reside in the method that a kind of LCD device is provided and drives the LCD device, described apparatus and method have overcome the one or more problems that cause because of the limitation of prior art and shortcoming basically.
An object of the present invention is to provide a kind of low energy consumption LCD device.
Another object of the present invention provides a kind of method that drives low energy consumption LCD device.
Other features and advantages of the present invention will provide in the following description, and wherein a part of feature and advantage can obviously draw from explanation or obtain by practice of the present invention.Structure by particularly pointing out in explanatory note part, claims and accompanying drawing can realize and obtain purpose of the present invention and other advantage.
In order to obtain these and other advantage and according to purpose of the present invention, description as generality and broad sense, liquid crystal indicator of the present invention comprises a plurality of pixel regions that are arranged on first substrate, be separately positioned in the pixel region to form a plurality of first electrodes and a plurality of second electrode of horizontal component of electric field, along continuous straight runs is arranged in many gate lines that sweep signal is provided to pixel region on first substrate, longitudinally be arranged in many data lines that image information is provided to pixel region on first substrate, be separately positioned in each pixel region, its first terminals link to each other with a gate line, second terminals link to each other with a data line, a plurality of switchgears that the 3rd terminals link to each other with first electrode of pixel region, second electrode in being located at every odd number first common voltage line pixel region provides many first common voltage lines of first common voltage, second electrode in being located at every even number second common voltage line pixel region provides many second common voltage lines of second common voltage, and first terminals that wherein are located at each driving mechanism for switch in the line unit pixel district alternately are connected on N bar gate line and the N+1 bar gate line (wherein N is an integer).
According to a further aspect, the invention provides a kind of method of utilizing coplane switch (IPS) to drive LCD, wherein on first substrate, arrange pixel region and first and second electrodes provide horizontal component of electric field to liquid crystal layer on the pixel by being arranged on, described method comprises that first terminals that a plurality of switchgears in the online unit pixel district alternately will be set are connected on N bar gate line and the N+1 bar gate line (wherein N is an integer), first common voltage is applied on second electrode that is located in the pixel region on every odd lines, described first common voltage has the pulse shape by the frame unit conversion, with second common voltage is applied on second electrode that is arranged on every even lines of pixel region, described second common voltage has the pulse shape by first reverse after the frame unit conversion common voltage.
According to a further aspect, liquid crystal indicator of the present invention comprises a plurality of pixel regions that are arranged on the substrate, many the gate lines that along continuous straight runs is arranged on substrate, many the data lines of on substrate, longitudinally arranging, electrically connect and provide to pixel region the drive element of the grid of sweep signal by gate line with substrate, provide the data of image information driver element with the substrate electric connection and by data line to pixel region, with a plurality of switchgears, each switchgear is formed on the pixel region between N bar gate line and the N+1 bar gate line and alternately links to each other with N+1 bar gate line (wherein N is an integer) with N bar gate line.
According to a further aspect, the method of driving liquid crystal indicator of the present invention comprises that every odd lines to pixel region provides first common voltage and provides second common voltage to every even lines of pixel region, apply the sweep signal that is used to select pixel region to gate line successively, wherein be applied to sweep signal on the N bar gate line and select each even number pixel region of N+1 bar line in each the odd number pixel region of N bar line in the pixel region and the pixel region, and provide and the corresponding image information of sweep signal to selected pixel region.
Obviously, top generality is described and following detailed description all is exemplary and indicative, and it is intended to claim of the present invention is further explained.
Description of drawings
The accompanying drawing that the application comprised is used for further understanding the present invention, and it combines with instructions and constitutes the part of instructions, and described accompanying drawing is represented embodiments of the invention and explained principle of the present invention with instructions.In the accompanying drawing:
Figure 1A is the schematic plan view of tft array substrate in the IPS LCD device of expression prior art;
Figure 1B is the schematic plan view of pixel equivalent electrical circuit of tft array substrate among Figure 1A of expression prior art;
Fig. 2 is the synoptic diagram of voltage waveform in the some inverse approach of expression prior art;
Fig. 3 A is the exemplary schematic plan view of tft array substrate in the expression IPS LCD device of the present invention;
Fig. 3 B is the exemplary schematic plan view of the pixel equivalent electrical circuit of tft array substrate among expression Fig. 3 A of the present invention;
Fig. 4 is the illustrative diagram that expression is provided to the voltage waveform on the pixel in the IPS LCD device of the present invention; With
Fig. 5 is the schematic pole diagram of pixel in the expression IPS LCD device of the present invention.
Embodiment
To describe embodiments of the invention in detail now, the example of described embodiment is shown in the drawings.
Fig. 3 A is the exemplary schematic plan view of tft array substrate in the expression IPS LCD device of the present invention.In Fig. 3 A, arrange many gate lines (G11-G1n) at interval and on substrate, longitudinally arrange many data lines (D11-D1m) at interval by rule by rule at along continuous straight runs on the substrate.Substrate is a tft array substrate.Therefore, gate line (G11-G1n) and data line (D11-D1m) intersect and constitute pixel region P11 in the intersections.In addition, in each pixel region P11, be provided with the switchgear TFT11 that image information is provided to pixel capacitors 111, for example TFT.Provide the drive element of the grid of scanning information to be electrically connected on the substrate to gate line (G11-G1n), provide the data of image information driver element to be electrically connected on the substrate to data line (D11-D1m).
In Fig. 3 A, the grid of TFT TFT11 links to each other with gate line (G11-G1n), and source electrode links to each other with data line (D11-D1m), and drain electrode links to each other with pixel capacitors among each pixel region P11.Therefore, of constituting in two gate lines of pixel region is corresponding with N bar gate line, and in two gate lines another is corresponding with N+1 bar gate line, and wherein N is an integer.So the grid of TFT (TFT11) alternately is connected with N+1 bar gate line with N bar gate line.
When drive element of the grid to gate line (G11-G1n) when applying sweep signal successively, TFT TFT11 can be by corresponding gate line conducting (ON).So, between the TFT of conducting TFT11 source electrode and drain electrode, form conductive channel, and the data-driven unit can provide image information to data line (D11-D1m), and can be transported to the image information that offers the TFT source electrode by data line (D11-D1m) in the drain electrode of TFT.Because drain electrode links to each other with pixel capacitors 111, so image information can offer pixel capacitors 11 by drain electrode.
In pixel region P11, produce horizontal component of electric field with the common electrode 113 of pixel capacitors 111 corresponding formation with pixel capacitors 111, can pass through IPS mode activated liquid crystal material thus.In addition, in each pixel region P11, form the figure of one or more common electrodes 113 along the direction that is parallel to data line (D11-D1m).And, common voltage is applied on the common electrode 113 that is formed in the pixel region P11 from common voltage line (Vcom11-Vcom1n).Common voltage line (Vcom11-Vcom1n) can be arranged to make it to have rule at interval and be parallel to gate line (G11-G1n), wherein can with every odd number common voltage line (..., Vcom11, Vcom13 ...) be electrically connected to each other.Equally, can with every even number common voltage line (..., Vcom12, Vcom14 ...) be electrically connected to each other.Every even number common voltage line (..., Vcom12, Vcom14 ...) second common voltage can be offered the common electrode 113A of pixel, described second common voltage has the pulse shape by the frame unit conversion.In addition, every odd number common voltage line (..., Vcom11, Vcom13 ...) first common voltage can be offered the common electrode 113B of pixel, described first common voltage has the pulse shape of the second reverse common voltage.Therefore, can drive by the image information that offers pixel capacitors 111 according to LCD device of the present invention, and first and second common voltages are applied on common electrode 113A and the 113B.
Owing to pixel capacitors 111 can be electrically connected on the storage electrode that is located at pixel region P11 stored electric capacity (not shown), so the image information that is applied on the pixel capacitors 111 can be charged to memory capacitance during the TFT TFT11 conducting (ON) that provides sweep signal.Charge into image information in the memory capacitance can be during the TFT that sweep signal is not provided disconnects (OFF) by provide information to keep driving to pixel capacitors 111 to liquid crystal material.
Fig. 3 B is the exemplary schematic plan view of the pixel equivalent electrical circuit of tft array substrate among expression Fig. 3 A of the present invention.In Fig. 3 B, pixel region P11 comprises TFT TFT11, each TFT TFT11 has the grid that links to each other with gate line (G9-G1n), with the source electrode that data line (D11-D1m) links to each other, be connected in stray capacitance (C1c) and memory capacitance that the electric capacity by liquid crystal material between TFT TFT11 drain electrode and the common voltage line (Vcom10-Vcom1n) produces in parallel.The TFT TFT11 that forms in the online unit pixel district P11 alternately can be linked to each other with N+1 bar gate line with N bar gate line, and stray capacitance (C1c) is linked to each other with a common voltage line with memory capacitance (Cst).Therefore, can will be transported on the data line (D11-D1m) by the reverse some reversal image information of adjacent image point.
Every even number common voltage line (..., Vcom12, Vcom14 ...) can provide second common voltage to the common electrode 113A of pixel, described second common voltage has the pulse shape by the frame unit conversion.In addition every odd number common voltage line (..., Vcom11, Vcom13 ...) can provide first common voltage to the common electrode 113B of pixel, described first common voltage has the pulse shape of the second reverse common voltage.
The common voltage of the conversion common voltage method of oppositely carrying is being very useful aspect the reduction LCD plant energy consumption frame by frame.For example, when the high potential common voltage is provided, the image information of negative (-) polarity will be provided, and when the low potential common voltage is provided, can provides just (+) polarity image information, therefore, can increase the voltage difference between common voltage and each image information.Oppositely carry method according to common voltage, if provide image information with the some reverse method, may be with just (+) and negative (-) image information offer the line unit pixel simultaneously.Therefore, may make common voltage oppositely carry the effect of method to degenerate.
For example, during a reverse method,, then provide just (+) polarity image information if common voltage is a high potential, and if common voltage is a low potential, negative (-) polarity image information then is provided, reduced the voltage difference between common voltage and the image information thus.Therefore, when adopting common voltage oppositely to carry method, can use the image information of identical polar is offered the line reverse method of line unit pixel so that obtain big voltage difference between common voltage and image information.But the shortcoming of line reverse method is that picture quality is relatively poor, and this is because compare with a reverse method, and aspect preventing to degenerate such as flicker or drive characteristic such as crosstalk, the effect of line reverse method is very little.Therefore, proposed to change the method for liquid crystal indicator pixel layout, replaced still obtaining the effect that common voltage is carried method under the situation of line reverse method with the some reverse method even make.
As shown in Fig. 3 B, comprise according to LCD device of the present invention first terminals of thin film transistor (TFT) in the line unit pixel alternately are connected on N bar gate line and the N+1 bar gate line.Therefore, can drive the LCD device with the some reverse method.In other words, when the some reversal image information of input has by the reverse pulse shape of pixel adjacent one another are, the image information with identical polar can be offered the switchgear that links to each other with N bar gate line.In addition, can offer the switchgear that links to each other with N+1 bar gate line to image information, described image information has identical polar with the image information that offers the on-off element that is connected N bar gate line.Therefore, can make the pole reversal of image information by the pixel of image information, and the link position of alteration switch element.So, image information with identical polar can be offered the line unit pixel of determining by N bar gate line and N+1 bar gate line, thereby obtain the effect that common voltage is oppositely carried method, wherein between common voltage and image information, produce big voltage difference.
Fig. 4 is the illustrative diagram that expression is provided to the voltage waveform on the pixel in the IPS LCD device of the present invention.In Fig. 4, the common electrode by every odd number common voltage alignment corresponding pixel provides first common voltage (Vcom odd number), and described first common voltage has the pulse shape of conversion frame by frame.In addition, the common electrode by every even number common voltage alignment corresponding pixel provides second common voltage (Vcom even number), and described second common voltage has the pulse shape of the first reverse common voltage (Vcom odd number).Therefore, can be in each horizontal cycle with sweep signal (... VG1, VG2, VG3 ...) be transported on the gate line successively.In addition, can carry first common voltage with pulse shape and have second common voltage of the first reverse common voltage pulse shape and in each vertical cycle, it is carried out conversion simultaneously.
When driving liquid crystal indicator in a manner described, the liquid crystal drive voltage between common electrode and the pixel capacitors (Vcel) may become bigger.For this reason, even the voltage that will be applied on the liquid crystal is set lower voltage for, liquid crystal drive voltage (Vcel) still can drive a plurality of pixels, thereby has reduced energy consumption.The capacitance coupling effect that oppositely produces owing to corresponding common voltage can make the liquid crystal drive voltage that is applied on the pixel capacitors change.Yet the voltage difference that forms in the pixel liquid crystal material still can keep with value is identical at present.
Fig. 5 is the schematic pole diagram of pixel in the expression IPS LCD device of the present invention.In Fig. 5, being used for reverse method of the present invention can be a reverse method, wherein can utilize pixel to make by data line and be applied to the pole reversal of the image information on the pixel and can carry out reverse in each horizontal cycle and each vertical cycle.Therefore, with line oppositely or the frame reverse method compare, by using a some reverse method, can prevent such as flicker or image degradation phenomenon such as crosstalk.
Driving method of the present invention has adopted the some reverse method, yet, can use visual form display line unit pixel, this drives similar with the line reverse method that usefulness and line unit pixel have identical polar.This is because switchgear alternately can be connected with N+1 bar gate line with the route selection of N bar.
As shown in Figure 5, in every frame, can also can make the pixel pole reversal with the line unit with frame unit.Can obtain actual picture structure by the line reverse method, but can adopt a reverse method to carry out the conveying of image information by data line, can prevent flicker thus to greatest extent and crosstalking etc. drives defective and produces high quality graphic.
According to the present invention, even the voltage that will be applied on the liquid crystal material is set lowlyer, still can increase the voltage difference that offers the LCD device, so reduced energy consumption to greatest extent.In addition,, also can drive a plurality of pixels, therefore enlarge the area that pixel capacitors and common electrode are isolated, improve the aperture ratio thus even the insulation distance between pixel capacitors and the common electrode increases.
To those skilled in the art, obviously, under the situation that does not break away from design of the present invention or scope, can make various modifications and variations to the method for LCD device of the present invention and driving LCD device.Therefore, the invention is intended to cover those and fall into claims and interior improvement and the modification of equivalent scope thereof.
Claims (16)
1. liquid crystal indicator comprises:
Be arranged in a plurality of pixel regions on the substrate;
Be separately positioned in the pixel region to form a plurality of first electrodes and a plurality of second electrode of horizontal component of electric field;
Along continuous straight runs is arranged in many gate lines that sweep signal is provided to pixel region on the substrate;
Longitudinally be arranged in many data lines that image information is provided to pixel region on the substrate;
Be separately positioned on a plurality of switchgears in each pixel region, its first terminals link to each other with a gate line, and second terminals link to each other with a data line, and the 3rd terminals link to each other with first electrode of pixel region;
Second electrode in being located at every odd lines pixel region provides many first common voltage lines of first common voltage;
Second electrode in being located at every even lines pixel region provides many second common voltage lines of second common voltage;
First terminals that wherein are located at each switchgear in the line unit pixel district alternately are connected on N bar gate line and the N+1 bar gate line (wherein N is an integer).
2. device according to claim 1, wherein switchgear comprises thin film transistor (TFT), and the grid of described thin film transistor (TFT) is first terminals, and source electrode is that second contact jaw and drain electrode are the 3rd terminals.
3. device according to claim 1, wherein the first common voltage line is arranged to be parallel to gate line and is electrical connected each other, and the second common voltage line also is arranged to be parallel to gate line and is electrical connected each other.
4. device according to claim 1, wherein first electrode is a pixel capacitors.
5. device according to claim 1, wherein second electrode is a common electrode.
6. device according to claim 1, wherein first common voltage is applied on the first common voltage line, second common voltage is applied on the second common voltage line, described first common voltage has the pulse shape by the frame unit conversion, and described second common voltage has the pulse shape of the first reverse common voltage.
7. device according to claim 1 wherein forms at least one common electrode in pixel region, described common electrode links to each other with one of second common voltage line with the first common voltage line.
8. a method of utilizing coplane switch (IPS) to drive LCD wherein provides horizontal component of electric field at layout pixel region on the substrate and by first and second electrodes that are arranged on the pixel to liquid crystal layer, and described method comprises:
First terminals that a plurality of switchgears in the online unit pixel district alternately will be set are connected on N bar gate line and the N+1 bar gate line (wherein N is an integer);
First common voltage is applied on second electrode that is located in the pixel region on every odd lines, and described first common voltage has the pulse shape by the frame unit conversion; With
Second common voltage is applied on second electrode that is arranged on interior every the even lines of pixel region, and described second common voltage has the pulse shape of the first reverse common voltage.
9. method according to claim 8 wherein provides first common voltage by the first common voltage line, and the described first common voltage line is arranged to parallel with every corresponding gate line of odd lines in the pixel region.
10. method according to claim 8 wherein applies second common voltage by the second common voltage line, and the described second common voltage line is arranged to parallel with every corresponding gate line of even lines in the pixel region.
11. method according to claim 8 wherein offers pixel region by a reverse method with image information.
12. method according to claim 11 wherein drives pixel region with the line reverse manner.
13. device according to claim 1, wherein substrate is a tft array substrate.
14. a liquid crystal indicator comprises:
Be arranged in a plurality of pixel regions on the substrate;
Many the gate lines that along continuous straight runs is arranged on substrate;
Many the data lines of on substrate, longitudinally arranging;
Electrically connect and provide to pixel region the drive element of the grid of sweep signal by gate line with substrate;
Provide the data of image information driver element with the substrate electric connection and by data line to pixel region; With
A plurality of switchgears, each switchgear are formed on the pixel region between N bar gate line and the N+1 bar gate line and alternately link to each other with N+1 bar gate line (wherein N is an integer) with N bar gate line.
15. a method that drives LCD comprises:
First common voltage is provided and provides second common voltage to every odd lines of pixel region to every even lines of pixel region;
Apply sweep signal to select pixel region to gate line successively, wherein be applied to each even number pixel region that sweep signal on the N bar gate line is selected N+1 bar line in each the odd number pixel region of N bar line in the pixel region and the pixel region;
With provide and the corresponding image information of sweep signal to selected pixel region.
16. method according to claim 15, the image information and the common voltage that wherein are applied to pixel region have reciprocal pulse shape.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020030042830 | 2003-06-27 | ||
| KR1020030042830A KR100652215B1 (en) | 2003-06-27 | 2003-06-27 | Liquid crystal display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1577013A true CN1577013A (en) | 2005-02-09 |
| CN1320399C CN1320399C (en) | 2007-06-06 |
Family
ID=32768654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100498687A Expired - Fee Related CN1320399C (en) | 2003-06-27 | 2004-06-25 | Liquid crystal display device and method for driving the same |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US7319448B2 (en) |
| JP (1) | JP2005018077A (en) |
| KR (1) | KR100652215B1 (en) |
| CN (1) | CN1320399C (en) |
| DE (1) | DE102004030136B4 (en) |
| FR (1) | FR2856834B1 (en) |
| GB (1) | GB2403336B (en) |
| TW (1) | TWI279759B (en) |
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Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0467091A (en) | 1990-07-09 | 1992-03-03 | Internatl Business Mach Corp <Ibm> | Liquid crystal display unit |
| KR100304912B1 (en) | 1993-12-30 | 2002-08-24 | 엘지.필립스 엘시디 주식회사 | Structure and Driving Method of LCD |
| KR100229618B1 (en) | 1996-10-09 | 1999-11-15 | 구자홍 | Lcd with microlens |
| JPH10124010A (en) | 1996-10-22 | 1998-05-15 | Hitachi Ltd | Liquid crystal panel and liquid crystal display device |
| KR100235592B1 (en) | 1997-01-22 | 1999-12-15 | 구본준 | Ips type lcd |
| KR100277182B1 (en) * | 1998-04-22 | 2001-01-15 | 김영환 | LCD |
| KR19990083510A (en) * | 1998-04-27 | 1999-11-25 | 가나이 쓰도무 | Active matrix liquid crystal display |
| JP3264270B2 (en) | 1999-07-26 | 2002-03-11 | 日本電気株式会社 | Liquid crystal display |
| KR100512622B1 (en) * | 2000-06-08 | 2005-09-02 | 마쯔시다덴기산교 가부시키가이샤 | Image display and method for displaying image |
| JP3723747B2 (en) | 2000-06-16 | 2005-12-07 | 松下電器産業株式会社 | Display device and driving method thereof |
| KR100372577B1 (en) * | 2000-08-07 | 2003-02-17 | 엘지.필립스 엘시디 주식회사 | liquid crystal display with wide viewing angle |
| JP3793915B2 (en) * | 2001-02-28 | 2006-07-05 | 株式会社日立製作所 | Liquid crystal display |
| JP3743503B2 (en) | 2001-05-24 | 2006-02-08 | セイコーエプソン株式会社 | Scan driving circuit, display device, electro-optical device, and scan driving method |
| JP4111785B2 (en) | 2001-09-18 | 2008-07-02 | シャープ株式会社 | Liquid crystal display |
| US7602465B2 (en) * | 2002-10-31 | 2009-10-13 | Lg Display Co., Ltd. | In-plane switching mode liquid crystal display device |
-
2003
- 2003-06-27 KR KR1020030042830A patent/KR100652215B1/en active IP Right Grant
-
2004
- 2004-06-15 US US10/866,997 patent/US7319448B2/en active Active
- 2004-06-18 GB GB0413727A patent/GB2403336B/en not_active Expired - Fee Related
- 2004-06-22 DE DE102004030136A patent/DE102004030136B4/en not_active Expired - Fee Related
- 2004-06-25 TW TW093118516A patent/TWI279759B/en not_active IP Right Cessation
- 2004-06-25 FR FR0406989A patent/FR2856834B1/en not_active Expired - Fee Related
- 2004-06-25 JP JP2004187579A patent/JP2005018077A/en active Pending
- 2004-06-25 CN CNB2004100498687A patent/CN1320399C/en not_active Expired - Fee Related
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| CN103309100B (en) * | 2012-03-14 | 2016-01-20 | 乐金显示有限公司 | Liquid crystal disply device and its preparation method |
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| CN102621758B (en) * | 2012-04-16 | 2015-07-01 | 深圳市华星光电技术有限公司 | Liquid crystal display device and driving circuit thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1320399C (en) | 2007-06-06 |
| KR20050001249A (en) | 2005-01-06 |
| FR2856834A1 (en) | 2004-12-31 |
| DE102004030136A8 (en) | 2005-06-09 |
| GB0413727D0 (en) | 2004-07-21 |
| TWI279759B (en) | 2007-04-21 |
| GB2403336A (en) | 2004-12-29 |
| KR100652215B1 (en) | 2006-11-30 |
| GB2403336B (en) | 2005-11-16 |
| US7319448B2 (en) | 2008-01-15 |
| TW200500998A (en) | 2005-01-01 |
| DE102004030136B4 (en) | 2012-11-08 |
| US20040263743A1 (en) | 2004-12-30 |
| JP2005018077A (en) | 2005-01-20 |
| DE102004030136A1 (en) | 2005-02-10 |
| FR2856834B1 (en) | 2008-04-18 |
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| C56 | Change in the name or address of the patentee |
Owner name: LG DISPLAY CO., LTD. Free format text: FORMER NAME OR ADDRESS: LG. PHILIP LCD CO., LTD. |
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Address after: Seoul, South Kerean Patentee after: LG DISPLAY Co.,Ltd. Address before: Seoul, South Kerean Patentee before: LG.Philips LCD Co.,Ltd. |
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